Refrigerator



May 26, 1925.

F. M. sToLL REFRIGERATOR Filed Aug. '7. 192:5Vv

IN VEN TOR.

BY I @9M A TTORNEY.

Patented May 26, 1925.

UNITED Alsfrares PATENT ()F1I"`IC'E.`

FRANK lVI. STOLL, OF DENVER, COLORADO, AS'SIGNGR '10 THE 'ROCKY yMQUNTAIN 'NOVELTY COMPANY, A CGR'PORATION. 0F COLORADO.

REFRIGERATOR.

Application -led August/7, 19273.` `Serial Np. 656,212.

Tov all who/m, t may cof/mera:

Be it `known that I, FRANK M. S'roLL, a citizen of the United States, residing at Denver, in the county Tof Denver and State of Colorado, have invented certain new and useful Improvements in Refrigerators, of which the following is a specification.

This invention relates to refrigerators and more particularly to refrigerating devices of the type in'which the interior of a food receptacle is cooled by the evaporation of water at the surface of the porous outer wall of a surrounding jacket.

It is anobj ect of the .present invention to provide in a refrigerator of the .above described character, an improved means for closing the entranceto the food receptacle, which effectively insulates the interior thereof `from the surrounding atmosphere; 'a further Objectis to provide an improved method of `connecting the outer porous wall of the refrigerator in spaced relation to the wall of the food receptacle, and :still other distinctive `features of the invention reside in the form of the supporting frame in which the refrigerator is suspended and in certain details of construction, all of which will be fully explained inthe course of the following description with reference tothe accom panying drawings.

In ,the drawings in the several views of which like partsare Vsimilarly designated,

lFigure l represents a sideelevation of the improved refrigerator;

Figure` 2, .a partiallysectional end-view of the same;

' Figure 3, a ,vertical section along the line 343, Figure 2;

Figure A4, a transverse section taken on the line lr-4, Figure 1;

Figure 5, a fragmentary sectiony in the plane designated by the line H, drawn to a much enlarged scale;

Figure 6, an enlarged section through one of the fasteners included in the construction ofthe outer wall of the refrigerator, taken on the line 6 6, Figures l and 2; and

Figure 7, an enlarged sectional elevation of one of the clamps by means of which the refrigerator may be fastened to the running board of a motor `vehicle or `other Vsimilar support.

Referring to the drawings, the reference numeral 2 ,designates a receptacle preferably made ofV sheet metal in .rectangular form, and provided with shelves 3 in .suitable larrangement for the support of dishes, .bottles, food stuffs and other-articlesto be preserved. Y

The receptacle which Vis open at its top, has around the edgeiof its opening, a troughshaped rim l which is formed iby ybending theV upper portions of' its walls ,first upon themselves and then outwardly and upwardly as best shown in Figure 5 of the drawings. p Y

The outer upright wall la of the rim serves for thesuspensioncf a bag 5 .of canvas or lother permeable fabric which provides the louter wall of a water jacket formed around thefood receptacle.

The bag which is shaped in conformity with the receptacle is fastened yto the rim by folding the upper portions of its sides inwardly about the outer wall thereof and securing said portions in place by means of a metalsheathconforming incontour with the wall of the rim andfitting snugly upon the portions ofthe bag that are folded thereon.v Bolts 7 passing through alined holes of thewall, thebagand thefsheath, and secured by nutsfS, fasten the parts together. u

The open top of the vfood receptacle is normally closedby a flanged lid 9 which ,fits snugly upon the doubled upper portionsof the walls thereof, and which is hinged by means nof straps ,10 fastened upon the horizout-al member 4@ of the rim. i

A pivoted Ing l2 fastened to the ,lid at its edge y,opposite to that at which it is hinged, provides va convenientmeans to lift it to the open position, .and a spring-catch .13 fastened to uthe rimcopperates lwith the ring `to hold-the lid in its closed position.

lThe top of the receptacle inclusive of its rim and its lidis ordinarily enclosed by a iianged cover 14 which .is fastened l,at one side ofthe outer wall of the rim by a flap ll-a inserted inthe corresponding portion of the sheath and secured-by the bolts which fasten the bag at the same side of the rim.

The cover Mis provided with a pad 15 of felt or-otherinsulating material, which rests uponthe lid of the food receptacle, and its flange yfitsisnugly upon the exterior portion ofthe sheath on the outer wall of the rim to which it is attached by means of snap fasteners 16 shown in detail in Figure 6.

A tube 1"( fastened in an opening of the rim 4 and projecting through lan aperture in the canvas cover 14, provides a ready means for the supply of water tothe jacket formed around the food receptacle, and a cock 15 fastened in an opening of the canvas bag at the bottom portion of the water space, is used to drain the water from the jacket for drinking, cleaning or 'other purposes.

The entire device constructed as herein-jA above described, is suspended in a metal frame composed of two Ul-shaped members 18 fastened together by braces 19 and 20, and bent inwardly at their upper ends for their attachment to the rim of the food receptace at opposite ends thereof.

The same bolts which fasten the upper portion of the bag to the wall of the rim and the enveloping sheath, may be employed to secure the receptacle to the frame.

The refrigerator if made in suitable proportions, is a most useful adjunct to the outfit of the automobile tourist and camper and in order that it may becarried on the vehicle without taking up space required for other purposes, I have provided a-pair of clamps by means of which it may be fastened to the running board.

The clamps shown in Figures 1, 2 and 7 of the drawings, each consist of a U-shaped bracket 22 adapted to embrace the foot board of an automobile and fitting against one of the cross braces 20 onthe underside of the supporting frame of the refrigerator.

One of the arms of the bracket, which is longer than the other arm, has two holes 22a one of which registers with a corresponding aperture of the cross brace. A bolt 23 inserted through the alined openings, co-operates with a thumb-nut 24 to fasten the bracket to the supporting frame, and a screw 25 supported in a correspondingly threaded aperture at the end of the short arm of the bracket, has a swiveled head which by engagement with the underside of the running board or other support to which the bracket is applied, clamps it in place.

It will be evident that the clamps are readily adjusted to a different position on the frame of the refrigerator by bringing the other opening of their long arms in register with the corresponding apertures of the cross arms of the frame and that the clamps are easily removed `in case it is desired to support the device without their use.

In the use of my improved refrigerator, the jacket around the food receptacle thereof, is filled with water through the tube 17, the mouth of which is normally closed by a stopper 21. The water permeating the canmetal walls of the food receptacle, maintains a low temperature within the receptacle for the preservation of articles of food placed upon its shelves, and theI tight-fitting lid of the food receptacle in conjunction with the padded and flanged canvas covering, insulates the contents of the receptacle from the iniiuence of the atmosphere at the top thereof.

It will be apparent that the means for fastening the canvas bag in spaced relation to the walls of the receptacle, provides a simple, secure and leak-proof joint; that the sheath included in said means furthermore provides a protective envelope for the upper portion of the canvas, which prevents wear and injury of the fabric; that the spring catch functions to force themetal lid of the receptacle to its closed position, and that the entire structure inclusive of the supporting frame, is designed to combine simplicity and economy of construction with efliciency and practicability in use.

Having thus described my invention, what I claim and desire to secure by yLetters Patent is:

1. A refrigerator of the character described, comprising a food-receptacle having a trough-shaped rim projecting laterally from its walls, a porous bag fastened at the outer portion of the rim in spaced relation to the walls of the receptacle, and a lid fitted upon the inner portion of the rim.

2. A refrigerator of the character described, comprising a food-receptacle hav ing a trough-shaped rim projecting laterally from its walls, a porous bag spaced from the walls of the receptacle and folded upon the outer wall of the rim, and means for fastening the bag to said wall,

3. A refrigerator of the character described, comprising a food-receptacle having a trough-shaped rim' projecting laterally from its walls, a porous bag spaced from the walls of the receptacle and folded upon the outer wall of the rim, a sheath fitted over the portion of the bag engaging with the rim, and means for fastening the sheath and the part of the bag within the same, to the rim.

4. A refrigerator of the character described, comprising a food receptacle having below its upper edge, an outwardly projecting rim, a porous bag fastened on the rim in spaced relation to the walls of the receptacle, and a flanged lid tting over said upper edge of the receptacle.

- 5. A refrigerator of the character described, comprising a food receptacle having below its upper edge, a laterally projecting rim. a fabric bag fastened on v.the rim in spaced relation to the Walls of the receptacle7 a lid closing the top of the receptacle, and a fabric cover over the lid, movably fastened to the rim and co-operating with the bag to completely enclose the receptacle.

6. A refrigerator of the character de scribed, comprising a food receptacle having below its upper edge, a laterally projecting rim, a fabric bag fastened on the rirn in spaced relation to the Walls of the receptacle, a lid closing the top of the receptacle, and a fabric cover movably fastened to the rim and having a pad that covers the lid.

7. A refrigerator of the character described, comprising a food receptacle having a trougl1shaped rim projecting laterally from its Walls, a fabric bag fastened on the outer wall of the riin in spaced relation to the walls of the receptacle, a flanged lid fitted upon the inside Wall of the rim, and a fianged fabric cover fitted over the outer wall of the rini and hinged at one side thereof.

8. A refrigerator of the character described corn rising a food rece tacle having 3 C! b a trough-shaped rim projecting laterally' frein its Walls, a fabric bag spaced from the Walls of the receptacle and'I folded over the outer wall of the rim, a sheath fitted over the portion of the bag engaging with the rirn, a lid closing the top of the receptacle on the inside of the rim, a flanged fabric cover' fitted over the outer Wall of the riin and having a Hap fastened inside the sheath at one side of the rim, and means for fastening the sheath and the part-s of the bag and the cover Within the` same, to the rnn.

9. A refrigerator of the character described comprising a food receptacle having an outwardly projecting rim, a lid for the receptacle, a bag fastened to the rim in spaced relation to the walls of the receptacle7 and a support for the receptacle connecting with the rim.

In testimony whereof I have afxed my signature.

FRANK M. STOLL. 

